高盛大幅上调铜价长期预期，且认为铝价短期过高

Group 1: Copper Market Outlook - Goldman Sachs expresses a bullish outlook on the copper market, raising the long-term price forecast for copper to $15,000 per ton by 2035, significantly above the market consensus of $10,900 per ton [1] - The new "long-term copper incentive curve" pricing model indicates that copper prices will be capped below $11,000 per ton in 2026-2027 due to a slight market surplus, but a supply gap is expected later in the decade due to resource constraints and growing demand in key sectors [1][2] - The analysis identifies three core reasons for the anticipated copper supply gap: slower-than-expected depletion of mine output, constraints on production growth in the Democratic Republic of Congo, and lower-than-expected refined copper demand due to increased aluminum substitution [3] Group 2: Aluminum Market Outlook - Goldman Sachs maintains a bearish stance on aluminum prices, predicting a decline to $2,350 per ton by Q4 2026, with recovery not expected until the early next decade [5] - The firm expects that new supply will push the aluminum market into surplus, although demand will benefit from similar drivers as copper, without facing the same resource constraints [5][7] - Long-term aluminum price forecasts have been extended, with expectations for prices to trade between $2,900 and $3,400 per ton from 2030 to 2035 [6] Group 3: Supply Dynamics and Recycling - The comprehensive waste supply model developed by Goldman Sachs indicates that the recycling rate for copper has been limited to around 75% over the past decade, with a potential increase in recycling rates tied to rising copper prices [4] - The firm estimates that a 10% increase in copper prices could raise the recycling rate by 0.8%, although diminishing returns are expected as the rate approaches 80% [4] - Global aluminum production is projected to increase by approximately 13 million tons from 2025 to 2035, with Central Asia, Iran, and sub-Saharan Africa identified as future growth centers for aluminum production [7]